Hi,

does anyone know if it is possible to construct sets of S4 objects?
It seems the constructor set does not like it:

Error in as.vector(x, "character") :
  cannot coerce type 'environment' to vector of type 'character'

Regards

Johnny

PS: by the way, does anyone know where I can find some examples using the
cset class from the "sets" package, beside the one in the standard doc?

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